JPS5893904A - Preventing method of turbine trip - Google Patents
Preventing method of turbine tripInfo
- Publication number
- JPS5893904A JPS5893904A JP19087581A JP19087581A JPS5893904A JP S5893904 A JPS5893904 A JP S5893904A JP 19087581 A JP19087581 A JP 19087581A JP 19087581 A JP19087581 A JP 19087581A JP S5893904 A JPS5893904 A JP S5893904A
- Authority
- JP
- Japan
- Prior art keywords
- turbine
- pipe
- steam
- trip
- valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims description 5
- 239000000446 fuel Substances 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000007921 spray Substances 0.000 claims abstract description 6
- 230000002265 prevention Effects 0.000 claims 1
- 239000003245 coal Substances 0.000 abstract description 2
- 238000013021 overheating Methods 0.000 abstract 2
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000001704 evaporation Methods 0.000 abstract 1
- 238000002485 combustion reaction Methods 0.000 description 4
- 238000000605 extraction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
- F01K23/02—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
- F01K23/06—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle
- F01K23/061—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle with combustion in a fluidised bed
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Turbines (AREA)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
Abstract
Description
【発明の詳細な説明】
本発明はタービントリップ防止方法に関し、特に蒸気タ
ービン装置のタービントリップを防止する方法に関する
。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for preventing a turbine trip, and more particularly to a method for preventing a turbine trip in a steam turbine system.
従来の蒸気タービン装置は、例えば第１図に示すように
石炭を燃料とする流動層燃焼装置１内に蒸気管２および
過熱管３を配電し、該過＃、管３かもタービン装置４に
過熱空気を供給してタービンを回転させるものである
このような妄晋に２いては、流動層５の温度が高くなる
と蒸気の叶が過大になり、蒸気タービン装置４でタービ
ントリップを生じることがある。なお、図中、８は空気
供給管、９は気水ドラム、１０は発゛屯磯、１１はコン
デンサである。In a conventional steam turbine device, for example, as shown in FIG. 1, power is distributed to a steam pipe 2 and a superheating pipe 3 in a fluidized bed combustion device 1 that uses coal as fuel, and the superheating pipe 3 also supplies superheating to a turbine device 4. It supplies air to rotate the turbine.
In such a situation, when the temperature of the fluidized bed 5 becomes high, the steam volume becomes excessively large, which may cause a turbine trip in the steam turbine device 4. In the figure, 8 is an air supply pipe, 9 is an air/water drum, 10 is a springboard, and 11 is a condenser.
従来、タービントリップを生じた場合には、先ず燃料供
給管５かもの燃料供給量を減少させたり、ライン７から
過熱蒸気管３Ａにスプレ水を吹込んで除熱し、タービン
トリップを防止していた。しかし、上記のような除熱操
作を行なってもタービントリップが防止されない場合が
あり、その解決策が望まれていた。Conventionally, when a turbine trip occurs, the turbine trip is prevented by first reducing the amount of fuel supplied to the fuel supply pipe 5 or by blowing spray water into the superheated steam pipe 3A from the line 7 to remove heat. However, even if the heat removal operation described above is performed, turbine tripping may not be prevented in some cases, and a solution to this problem has been desired.
本発明の目的は、上記従来技術の問題を解決し、蒸気タ
ービン装置のタービントリップを段階的な除熱によって
防止する方法を提供することにある、本発明は、燃料供
給手段を有する流動層内に蒸発管および過熱管を配置し
た蒸気タービン装置のトリップ発生に際して、第一段階
として燃料供給量を減少させ、第二段階として蒸気ター
ビン装置に供給する過熱蒸気にスプレ水を供給し、最終
段階として流動層の媒体を抜き出すことを特徴とする。An object of the present invention is to solve the above-mentioned problems of the prior art and to provide a method for preventing a turbine trip of a steam turbine device by stepwise heat removal. When a trip occurs in a steam turbine system that has an evaporator pipe and a superheating pipe arranged in a It is characterized by drawing out the medium of the fluidized bed.
以下、本発明を第２図に示す実施例によりさらに詳細に
説明する。図において、第１図の従来装置と異なる点は
、除熱手段として、燃焼供給管６のダンパ６Ａ、過熱蒸
気管に対するスプレ水供給管７の調整弁７Ａの外に、流
動層５の媒体抜き出し管２０および排出弁２０Ａを設け
たことである。Hereinafter, the present invention will be explained in more detail with reference to an embodiment shown in FIG. In the figure, the difference from the conventional device shown in FIG. This is because the pipe 20 and the discharge valve 20A are provided.
上記構成の装置において、タービン４でタービントリッ
プが発生すると、先ず第１の除熱段階として燃焼供給管
６のダンパ６Ａを開度を小とし、さらに全閉としてもタ
ービンが定常状態に復帰しない場合には第２段階として
スプレ水の弁７Ａを開き、さらに除熱１を増大させる。In the device configured as described above, when a turbine trip occurs in the turbine 4, first, as a first heat removal stage, the damper 6A of the combustion supply pipe 6 is opened to a small degree, and even if the damper 6A of the combustion supply pipe 6 is fully closed, the turbine does not return to a steady state. In the second step, the spray water valve 7A is opened and the heat removal 1 is further increased.
この段階でまだタービントリップが防止されない場合に
は媒体抜き出し管２０の弁２０Ａを開き、流動媒体の一
部を抜き出す。この場合、抜き出し晴を調整することに
より除熱量を制御することができる。なお、抜き出され
た媒体粒子は、冷却タンク２１で冷却された後、適当な
媒体移送手段によりホッパ２２に貯留され、弁２３を介
して元の流動層１に再循環される。上記３段階の順に除
熱を行なうのは、各段階毎に除熱量が大きくなり、ター
ビントリップの防止効果が顕著になるからである。上記
三段階の操作は緊急時には同時に行なってもよいことは
勿論である。If the turbine trip is still not prevented at this stage, the valve 20A of the medium extraction pipe 20 is opened and a portion of the fluidized medium is extracted. In this case, the amount of heat removed can be controlled by adjusting the extraction level. The extracted medium particles are cooled in a cooling tank 21, stored in a hopper 22 by a suitable medium transfer means, and recirculated to the original fluidized bed 1 via a valve 23. The reason why the heat is removed in the order of the three stages is that the amount of heat removed increases with each stage, and the effect of preventing turbine trips becomes significant. Of course, the above three steps of operations may be performed simultaneously in an emergency.
以上、本発明によれば、蒸気タービン装置のトリップ発
生に除し、タービンが正常な状態に復帰するまで所望の
除熱を行ない、タービントリップを防止することができ
る。As described above, according to the present invention, even if a trip occurs in the steam turbine device, desired heat removal can be performed until the turbine returns to a normal state, thereby preventing the turbine trip.
第１図は、従来の蒸気タービン装置の系統図、第２図は
、本発明の一実施例を示す蒸気タービン装置の系統図で
ある。
１・・・流動層燃焼装置、２・・・蒸気管、３・・・過
熱蒸気管、４・・・蒸気タービン装置、５・・・流動層
、９・・・気水ドラム、６・・・燃料供給管、７・・・
スプレ水供給管、２０・・・媒体抜き出し管。
代理人 弁理士 川 北 武 長FIG. 1 is a system diagram of a conventional steam turbine device, and FIG. 2 is a system diagram of a steam turbine device showing an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Fluidized bed combustion device, 2... Steam pipe, 3... Superheated steam pipe, 4... Steam turbine device, 5... Fluidized bed, 9... Air-water drum, 6...・Fuel supply pipe, 7...
Spray water supply pipe, 20...medium extraction pipe. Agent Patent Attorney Takeshi Kawakita
Claims (1)
熱管を配置した蒸気タービン装置のトリップ発生に際し
て、第一段階として燃料供給量を減少させ、第二段階と
して蒸気タービン装置に供給する過熱蒸気にスプレ水を
供給し、最終段階として流動層の媒体を抜き出すことを
゛特徴とするタービントリップ防止方法。(1) When a trip occurs in a steam turbine device in which an evaporator tube and a superheating tube are arranged in a fluidized bed having a fuel supply means, the first step is to reduce the amount of fuel supplied, and the second step is to superheat the fuel to be supplied to the steam turbine device. A turbine trip prevention method characterized by supplying spray water to steam and extracting the fluidized bed medium as a final step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19087581A JPS5893904A (en) | 1981-11-30 | 1981-11-30 | Preventing method of turbine trip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19087581A JPS5893904A (en) | 1981-11-30 | 1981-11-30 | Preventing method of turbine trip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5893904A true JPS5893904A (en) | 1983-06-03 |
Family
ID=16265199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19087581A Pending JPS5893904A (en) | 1981-11-30 | 1981-11-30 | Preventing method of turbine trip |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5893904A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60122801A (en) * | 1983-12-05 | 1985-07-01 | バブコツク日立株式会社 | Fluidized-bed boiler device |
-
1981
- 1981-11-30 JP JP19087581A patent/JPS5893904A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60122801A (en) * | 1983-12-05 | 1985-07-01 | バブコツク日立株式会社 | Fluidized-bed boiler device |
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